WROOM-32 flash size?

WiFive
Posts: 2946
Joined: Tue Dec 01, 2015 7:35 am

WROOM-32 flash size?

Postby WiFive » Fri Aug 05, 2016 10:18 am

I see wroom-32 data sheet is available at http://espressif.com/en/support/download/overview

What is the flash size?

a2retro
Posts: 56
Joined: Tue Dec 01, 2015 3:09 am

Re: WROOM-32 flash size?

Postby a2retro » Sun Aug 07, 2016 1:02 pm

The esp32 web site says the flash is 4MBbyte.
http://www.espressif.com/en/products/ha ... 2/overview

You think it might be different on the shipping wroom32 modules?

WiFive
Posts: 2946
Joined: Tue Dec 01, 2015 7:35 am

Re: WROOM-32 flash size?

Postby WiFive » Sun Aug 07, 2016 2:54 pm

The flash is external and the data sheet says up to 64MB. So 4MB is expected but not stated explicitly as default.

ESP_Sprite
Posts: 3610
Joined: Thu Nov 26, 2015 4:08 am

Re: WROOM-32 flash size?

Postby ESP_Sprite » Mon Aug 08, 2016 7:56 am

On the WROOM32 it will indeed be 4MB (= 32Mbit).

WiFive
Posts: 2946
Joined: Tue Dec 01, 2015 7:35 am

Re: WROOM-32 flash size?

Postby WiFive » Wed Aug 10, 2016 2:48 am

ESP_Sprite wrote:On the WROOM32 it will indeed be 4MB (= 32Mbit).
Thanks. Does wroom32 have rtc crystal onboard? Data sheet says yes, but hdk module reference design doesn't have it. So reference design is intended for lowest cost modules like ai-thinker esp-3212, but wroom32 design is different?

cindylee7689
Posts: 3
Joined: Thu Aug 04, 2016 3:04 pm

Re: WROOM-32 flash size?

Postby cindylee7689 » Thu Aug 18, 2016 1:32 pm

WiFive wrote:
ESP_Sprite wrote:On the WROOM32 it will indeed be 4MB (= 32Mbit).
Thanks. Does wroom32 have rtc crystal onboard? Data sheet says yes, but hdk module reference design doesn't have it. So reference design is intended for lowest cost modules like ai-thinker esp-3212, but wroom32 design is different?
Thank you very much!

ppisljar
Posts: 18
Joined: Wed Feb 22, 2017 4:36 pm

Re: WROOM-32 flash size?

Postby ppisljar » Wed Feb 22, 2017 4:46 pm

i have ESP-WROOM-32 and i tried to upload a program 1.7MB big .... Platform.IO complains that maximum 1MB is allowed ... i went ahead and changed its limit to 2mb but upload failed. is there a reason i can only upload programs up to 1mb ?

WiFive
Posts: 2946
Joined: Tue Dec 01, 2015 7:35 am

Re: WROOM-32 flash size?

Postby WiFive » Thu Feb 23, 2017 7:51 am

Partition table needs to match firmware size.

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